Add support for setting sheriff-specific bug labels.

dashboard/dashboard/email_sheriff_test.py

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import sys
 import unittest
 import urllib
 
 import mock
 
@@ skipping 15 matching lines @@
   def _AddTestToStubDataStore(self):
     """Adds a test which will be used in the methods below."""
     bug_label_patterns.AddBugLabelPattern('label1', '*/*/dromaeo/dom')
     bug_label_patterns.AddBugLabelPattern('label2', '*/*/other/test')
     testing_common.AddTests(
         ['ChromiumPerf'], ['Win7'], {'dromaeo': {'dom': {}}})
     test = utils.TestKey('ChromiumPerf/Win7/dromaeo/dom').get()
     test.improvement_direction = anomaly.DOWN
     sheriff.Sheriff(
         id='Chromium Perf Sheriff',
-        url=_SHERIFF_URL, email=_SHERIFF_EMAIL).put()
+        url=_SHERIFF_URL,
+        email=_SHERIFF_EMAIL,
+        labels=['Performance-Sheriff']).put()
     return test
 
   def _GetDefaultMailArgs(self):
     """Adds an Anomaly and returns arguments for email_sheriff.EmailSheriff."""
     test_entity = self._AddTestToStubDataStore()
     sheriff_entity = ndb.Key('Sheriff', 'Chromium Perf Sheriff').get()
     anomaly_entity = anomaly.Anomaly(
         median_before_anomaly=5.0,
         median_after_anomaly=10.0,
         start_revision=10002,
@@ skipping 90 matching lines @@
     self.assertEqual(1, len(messages))
     self.assertIn(anomaly.FREAKIN_HUGE, str(messages[0].subject))
     self.assertNotIn(str(sys.float_info.max), str(messages[0].body))
     self.assertIn(anomaly.FREAKIN_HUGE, str(messages[0].body))
     self.assertNotIn(str(sys.float_info.max), str(messages[0].html))
     self.assertIn(anomaly.FREAKIN_HUGE, str(messages[0].html))
 
 
 if __name__ == '__main__':
   unittest.main()